﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace test2_Calculator_wj.CalClasses
{
    public class Calculate
    {
        protected double A { get; set; }
        protected double B { get; set; }

        public virtual string Cal(string strA, string strB) 
        {
            return "";
        }
    }
}
